Agnathans Most primitive fish Jawless, no paired appendages

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Presentation transcript:

Agnathans Most primitive fish Jawless, no paired appendages Eel-shaped body Cartilagionous skeletons Hagfish and Lamprey

Chondrichthyes Sharks, Skates, Rays, Ratfishes Jaws and Cartilaginous skeleton Gill Slits, Spiracle and Claspers No Swim Bladder Placoid Scales

Placoid scales Superficially look like the scales of bony fish, but are actually modified teeth!

Osteichthyes Bony Fish Fin Spines and Rays Swim Bladder Gill Cover Otolith Most Diverse

Types of Scales Sharks/Rays Sturgeons/Gars Salmon/Carp Perch (Most Bony fish)